Functionally, usted and ustedes are second person pronouns, but grammatically, the verbs they govern are conjugated in the third person. This however does not apply to (1.2) in Western Andalusia, where it is conjugated in the second person. See Appendix:Spanish pronouns for details

Like other masculine Spanish words, masculine Spanish pronouns can be used when the gender of the subject is unknown or when the subject is plural and of mixed gender.1 Not used after con; conmigo, contigo, and consigo are used instead, respectively2 Use the third-person reflexive pronouns when appropriate3 Used only in Spain4 Depending on the implicit gender of the subject being referred to